Comprehensive Real Exam Questions & Correct
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Reliability of metadata - ANSWER-Metadata helps data
analysts confirm their
data is reliable by making sure it is accurate, precise,
relevant, and timely
Consistency in databases - ANSWER-When a database is
consistent, it's easier
to discover relationships between the data inside the
database and data that
exists
elsewhere
Metadata repositories - ANSWER-Specialized databases
specifically created to
store and manage metadata, describing where the metadata
came from and
storing that data in an
accessible form
Access to metadata - ANSWER-Provides data analysts with
quick and easy
,access to the
data
Data classification - ANSWER-Data analysts can
categorize data when it
follows a consistent format, which is beneficial in cleaning and
processing data
Data storage - ANSWER-Consistent and uniform data can be
efficiently stored
in various data repositories, streamlining storage
management tasks
Data access - ANSWER-Users, applications, and systems can
efficiently locate
and use
data
Data Governance - ANSWER-A process to ensure the formal
management of a
company's data
assets.
CSV - ANSWER-Comma-separated values; a file format that
saves data in a
table
format.
,IMPORTRANGE - ANSWER-A function that enables a data
analyst to specify a
range of cells in one spreadsheet to be
duplicated in another.
Sorting data - ANSWER-Arranging data into a meaningful
order to make it
easier to understand, analyze, and
visualize.
Filtering data - ANSWER-Showing only data that meets a
specific criteria while
hiding the
rest.
SELECT - ANSWER-Allows you to select specific columns
and rows of data
from database
object(s).
FROM - ANSWER-Specifies the source table or tables from
which data is
retrieved.
WHERE - ANSWER-Used to filter records in a query, selecting
only those that
meet a specified
condition.
(*) - ANSWER-Includes all columns from a table.
, SQL dialects - ANSWER-Slightly different variations of SQL
used by different
vendors of SQL
databases.
Single quotes - ANSWER-A general rule across almost all
SQL dialects is to
use single quotes for
strings.
CamelCase capitalization - ANSWER-Capitalize the start of
each word, like a
two-humped (Bactrian)
camel.
nake_case - ANSWER-A naming convention for columns
where words are
separated by underscores and all letters are
lowercase.
Indentation - ANSWER-A general rule to keep the length of each
line in a query
<= 100 characters for
readability.
Multi-line comments - ANSWER-Use /* to start the comment and
*/ to close the
comment.